In order to avoid these errors, we must employ a symbolism which excludes them, by not applying the same sign in different symbols and by not applyin… - Ludwig Wittgenstein
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In order to avoid these errors, we must employ a symbolism which excludes them, by not applying the same sign in different symbols and by not applying signs in the same way which signify in different ways. A symbolism, that is to say, which obeys the rules of logical grammar — of logical syntax. (The logical symbolism of Frege and Russell is such a language, which, however, does still not exclude all errors.)
You sometimes see in a wind a piece of paper blowing about anyhow. Suppose the piece of paper could make the decision: ‘Now I want to go this way.’ I say: ‘Queer, this paper always decides where it is to go, and all the time it is the wind that blows it. I know it is the wind that blows it.’ That same force which moves it also in a different way moves its decisions.
